Table 2 Factors associated with the increase in TFI score in permanent teeth after 3 years
From: Clinical changes in the severity of dental fluorosis: a longitudinal evaluation
Baseline variable | Incidence | Crude | Adjusted | ||||||
|---|---|---|---|---|---|---|---|---|---|
RR | 95%IC | p-value | RR | IC95% | p-value | ||||
Sex | |||||||||
Male | 27.1 | 1.3 | 0.8 | 1.9 | 0.308 | 1.4 | 0.9 | 2.1 | 0.093 |
Female | 21.6 | 1.0 | 1.0 | ||||||
Age | |||||||||
8 | 30.3 | 1.4 | 0.7 | 2.7 | 0.379 | 1.6 | 0.8 | 3.3 | 0.165 |
9 | 35.3 | 1.6 | 0.8 | 3.0 | 0.163 | 1.8 | 1.0 | 3.5 | 0.064 |
10 | 37.7 | 1.7 | 0.9 | 3.2 | 0.106 | 1.8 | 1.0 | 3.4 | 0.066 |
11 | 38.5 | 1.7 | 0.9 | 3.3 | 0.089 | 1.7 | 0.9 | 3.3 | 0.082 |
12 | 22.2 | 1.0 | 1.0 | ||||||
Baseline TFI | |||||||||
TF 1 | 44.2 | 7.3 | 1.3 | 40.1 | 0.022 | 9.7 | 1.7 | 56.5 | 0.011 |
TF 2 | 12.7 | 2.1 | 0.4 | 11.6 | 0.394 | 2.8 | 0.5 | 16.5 | 0.251 |
TF 3 | 12.1 | 2.0 | 0.5 | 8.1 | 0.334 | 1.9 | 0.4 | 8.3 | 0.397 |
TF 5 | 6.1 | 1.0 | 1.0 | ||||||
Tooth type | |||||||||
Incisors-primer molar | 20.0 | 1.8 | 1.0 | 3.3 | 0.054 | 1.1 | 0.8 | 1.4 | 0.678 |
Canines-premolar-second molar | 33.2 | 3.0 | 1.7 | 5.2 | 0.000 | 1.5 | 1.1 | 2.0 | 0.005 |
Maxillary incisors | 11.2 | 1.0 | 1.0 | ||||||